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<head><meta charset="utf-8"><title>meeting 2020.10.20 · wg-async-foundations · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/index.html">wg-async-foundations</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html">meeting 2020.10.20</a></h3>

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<a name="213948820"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213948820" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213948820">(Oct 20 2020 at 17:03)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="1172">@WG-async-foundations</span> meeting time</p>



<a name="213948890"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213948890" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213948890">(Oct 20 2020 at 17:03)</a>:</h4>
<p><a href="https://github.com/orgs/rust-lang/projects/2">Project board</a></p>



<a name="213948966"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213948966" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213948966">(Oct 20 2020 at 17:04)</a>:</h4>
<p>One issue was fixed last week:</p>
<ul>
<li>ICE: Broken MIR <a href="https://github.com/rust-lang/rust/issues/72651">#72651</a></li>
</ul>



<a name="213949055"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949055" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949055">(Oct 20 2020 at 17:05)</a>:</h4>
<p>Let's go through some issue triage and then do updates</p>



<a name="213949074"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949074" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949074">(Oct 20 2020 at 17:05)</a>:</h4>
<p><a href="https://github.com/search?q=org%3Arust-lang+is%3Aissue+label%3AA-async-await+is%3Aopen+-label%3AAsyncAwait-Triaged&amp;type=Issues">Untriaged issues</a></p>



<a name="213949094"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949094" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949094">(Oct 20 2020 at 17:05)</a>:</h4>
<h2>#[must_use] on async fns works on returned <code>Future</code> instead of the awaited value <a href="https://github.com/rust-lang/rust/issues/78149">#78149</a></h2>



<a name="213949136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949136">(Oct 20 2020 at 17:06)</a>:</h4>
<p>hm, interesting</p>



<a name="213949208"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949208" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949208">(Oct 20 2020 at 17:06)</a>:</h4>
<p>I think I agree that this is a bug, especially since <code>Future</code> is already <code>#[must_use]</code></p>



<a name="213949287"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949287" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949287">(Oct 20 2020 at 17:07)</a>:</h4>
<p>It might be a challenge to fix, though</p>



<a name="213949317"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949317" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949317">(Oct 20 2020 at 17:07)</a>:</h4>
<p>Given that it's a bug in stable I'm going to mark on deck</p>



<a name="213949617"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949617" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949617">(Oct 20 2020 at 17:09)</a>:</h4>
<p>ok, that's the only untriaged (we triaged <a href="https://github.com/rust-lang/rust/issues/77880">#77880</a> last week and I just forgot to mark it)</p>



<a name="213949706"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949706" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949706">(Oct 20 2020 at 17:10)</a>:</h4>
<p>Okay, any updates from ongoing work?</p>



<a name="213949853"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949853" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Didrik Nordstrom <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949853">(Oct 20 2020 at 17:11)</a>:</h4>
<p>Me and Lee are working on the async book, one PR soon ready to land</p>
<p><a href="https://github.com/rust-lang/async-book/pull/104">https://github.com/rust-lang/async-book/pull/104</a></p>



<a name="213949871"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949871" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949871">(Oct 20 2020 at 17:11)</a>:</h4>
<p>I'm going to go through in-progress issues on the project board</p>



<a name="213949974"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949974" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949974">(Oct 20 2020 at 17:12)</a>:</h4>
<p><span class="user-mention" data-user-id="137147">@Didrik Nordstrom</span>  We should add those PRs to the project board</p>



<a name="213949985"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949985" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Didrik Nordstrom <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949985">(Oct 20 2020 at 17:12)</a>:</h4>
<p>Ok</p>



<a name="213949997"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213949997" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213949997">(Oct 20 2020 at 17:12)</a>:</h4>
<p>oh, it's already there, nm</p>



<a name="213950131"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950131" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950131">(Oct 20 2020 at 17:13)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/66731">#66731</a> I'm going to return this to "on deck" since there hasn't been progress. Feel free to re-claim</p>



<a name="213950374"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950374" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950374">(Oct 20 2020 at 17:15)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/70935">#70935</a> has been making progress, slowly, and I owe a review</p>



<a name="213950449"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950449" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950449">(Oct 20 2020 at 17:15)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/74304">#74304</a> "Stabilize the Wake trait" is still under FCP and waiting for review from libs team</p>



<a name="213950653"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950653" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950653">(Oct 20 2020 at 17:17)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/76517">#76517</a> has a PR but stalled, pinging the author</p>



<a name="213950831"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950831" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950831">(Oct 20 2020 at 17:18)</a>:</h4>
<p>Okay, going through claimed issues next..</p>



<a name="213950955"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213950955" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213950955">(Oct 20 2020 at 17:19)</a>:</h4>
<p>Lifetime error points to wrong reference in async fn return <a href="https://github.com/rust-lang/rust/issues/75785">#75785</a> - been a month since it was claimed, not sure if <span class="user-mention" data-user-id="125294">@Aaron Hill</span> still wants to work on this</p>



<a name="213951119"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951119" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951119">(Oct 20 2020 at 17:20)</a>:</h4>
<p>oh, sorry - I forgot all about that</p>



<a name="213951141"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951141" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951141">(Oct 20 2020 at 17:20)</a>:</h4>
<p>I think <a href="https://github.com/rust-lang/rust/pull/76468">https://github.com/rust-lang/rust/pull/76468</a> might be related, but I'm not sure</p>



<a name="213951168"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951168" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951168">(Oct 20 2020 at 17:20)</a>:</h4>
<p>I can get a PR open if it's not already covered</p>



<a name="213951313"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951313">(Oct 20 2020 at 17:21)</a>:</h4>
<p>Lifetime bounds in auto trait impls prevent trait from being implemented on generators <a href="https://github.com/rust-lang/rust/issues/64552">#64552</a> - <span class="user-mention" data-user-id="116773">@csmoe</span> are you still planning to work on this? I think we didn't make much progress in figuring out what to do next</p>



<a name="213951622"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951622" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951622">(Oct 20 2020 at 17:23)</a>:</h4>
<p><span class="user-mention silent" data-user-id="125294">Aaron Hill</span> <a href="#narrow/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20/near/213951141">said</a>:</p>
<blockquote>
<p>I think <a href="https://github.com/rust-lang/rust/pull/76468">https://github.com/rust-lang/rust/pull/76468</a> might be related, but I'm not sure</p>
</blockquote>
<p>looks like it might be, I left a comment on the PR</p>



<a name="213951799"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951799" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951799">(Oct 20 2020 at 17:24)</a>:</h4>
<p>moving on, we have 15 unclaimed "on deck" issues</p>



<a name="213951833"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951833" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Bhargav Voleti <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951833">(Oct 20 2020 at 17:24)</a>:</h4>
<p>A note on the <code>#[must_not_await]</code> annotation. I have been really busy with work the past couple of weeks. My schedule will be freeing up this week, so I'll open an RFC on the RFC repo in the later end of this week.</p>



<a name="213951984"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213951984" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213951984">(Oct 20 2020 at 17:25)</a>:</h4>
<p>I like to keep this list at 10 or under, but these are all issues we considered important for one reason or another, so it would be nice if we could find someone to claim them :)</p>



<a name="213952095"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952095" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952095">(Oct 20 2020 at 17:26)</a>:</h4>
<p>Let's use the remaining time to go through some of them</p>



<a name="213952116"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952116" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952116">(Oct 20 2020 at 17:26)</a>:</h4>
<h2>Impossible case reached: src/librustc_ty/needs_drop.rs:111 <a href="https://github.com/rust-lang/rust/issues/72685">#72685</a></h2>



<a name="213952307"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952307" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952307">(Oct 20 2020 at 17:27)</a>:</h4>
<p>The reproducer at the end of the thread doesn't panic anymore</p>



<a name="213952327"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952327" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952327">(Oct 20 2020 at 17:27)</a>:</h4>
<p>so this one should be easy, just need to add a regression test</p>



<a name="213952519"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952519" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952519">(Oct 20 2020 at 17:28)</a>:</h4>
<p>moving on for now</p>



<a name="213952524"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952524" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952524">(Oct 20 2020 at 17:28)</a>:</h4>
<h2>confusing diagnostic for incorrect type parameter on BoxFuture <a href="https://github.com/rust-lang/rust/issues/72117">#72117</a></h2>



<a name="213952681"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952681" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952681">(Oct 20 2020 at 17:30)</a>:</h4>
<p>This one I think is not too hard to improve</p>



<a name="213952999"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213952999" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213952999">(Oct 20 2020 at 17:31)</a>:</h4>
<h2>Async function leads to a "more general type" error <a href="https://github.com/rust-lang/rust/issues/71723">#71723</a></h2>



<a name="213953111"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953111" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953111">(Oct 20 2020 at 17:32)</a>:</h4>
<p>This one at least has a +1, I think it should be ranked higher</p>



<a name="213953203"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953203" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953203">(Oct 20 2020 at 17:33)</a>:</h4>
<p>it might be more difficult to solve, though</p>



<a name="213953208"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953208" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953208">(Oct 20 2020 at 17:33)</a>:</h4>
<p>hm okay, we're out of time</p>



<a name="213953233"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953233" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953233">(Oct 20 2020 at 17:33)</a>:</h4>
<p>so far I haven't heard any volunteers :)</p>



<a name="213953344"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953344" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953344">(Oct 20 2020 at 17:34)</a>:</h4>
<p>I did notice that <a href="https://github.com/rust-lang/rust/issues/74072">#74072</a> is in-progress, that's the one <a href="https://github.com/rust-lang/rust/issues/75785">#75785</a> is intended to fix</p>



<a name="213953391"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953391" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953391">(Oct 20 2020 at 17:34)</a>:</h4>
<p>it looks like I did a bit of digging into <a href="https://github.com/rust-lang/rust/issues/71723">#71723</a> but never made much progress :(</p>



<a name="213953414"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953414" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953414">(Oct 20 2020 at 17:34)</a>:</h4>
<p>(sorry I'm late, stuff ran over, reading backscroll)</p>



<a name="213953585"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953585" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953585">(Oct 20 2020 at 17:35)</a>:</h4>
<p>yeah</p>



<a name="213953706"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953706" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953706">(Oct 20 2020 at 17:36)</a>:</h4>
<p>Anyone interested in adding a regression test for <a href="https://github.com/rust-lang/rust/issues/72685">#72685</a> just to close it out?</p>



<a name="213953770"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213953770" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213953770">(Oct 20 2020 at 17:36)</a>:</h4>
<p>if not I can</p>



<a name="213954002"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213954002" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213954002">(Oct 20 2020 at 17:38)</a>:</h4>
<p>(anyway, we're way over, thanks for coming everyone!)</p>



<a name="213954123"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213954123" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213954123">(Oct 20 2020 at 17:39)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116883">tmandry</span> <a href="#narrow/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20/near/213951622">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="125294">Aaron Hill</span> <a href="#narrow/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20/near/213951141">said</a>:</p>
<blockquote>
<p>I think <a href="https://github.com/rust-lang/rust/pull/76468">https://github.com/rust-lang/rust/pull/76468</a> might be related, but I'm not sure</p>
</blockquote>
<p>looks like it might be, I left a comment on the PR</p>
</blockquote>
<p><span class="user-mention" data-user-id="125294">@Aaron Hill</span> <a href="https://github.com/rust-lang/rust/pull/76468#issuecomment-713024142">looks like no</a> fyi</p>



<a name="213954170"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.10.20/near/213954170" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E10.2E20.html#213954170">(Oct 20 2020 at 17:39)</a>:</h4>
<p>I'll start working on a PR, then</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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